Question: What was the population of Catania in 2017-1-1?
Paraphrase: What was Catania's population at the start of 2017?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1903 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2017')) }